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AMD Radeon 7990 made official and demoed

AMD Radeon 7990 made official and demoed

The AMD Radeon HD 7990 uses two 7970 GPUs on a single card.

AMD has finally unveiled its version of the HD 7990 some four months after board partners first released cards based on the design.

The new dual-GPU flagship graphics card was shown for the first time during the company's press conference at the Games Developer Conference (GDC) currently taking place in San Francisco.

No official details of the card's clock speeds or memory configuration were revealed but the company did confirm that it uses two HD 7970 GPUs mounted on a single board.

AMD also promised the card would be whisper quiet thanks to its triple fan configuration that sees the fans blow air straight down onto the card rather than directing the airflow through the heatsink and out the backplate. This is in contrast to the elaborate water cooled Asus Ares II version of this card, though it's likely the AMD version won't run at such high clock speeds. Also, unlike the chunky Club 3D Radeon HD 7990, this AMD-designed version only fills two expansion slots rather than three.

Power consumption also appears to have been reduced as only two 8-pin auxilliary power sockets are present on this new card, as opposed to the three employed on previous unofficial versions. This also opens the card's potential customer base to those that don't have a power supply with three PCI-E power connections.

As well as a DVI-D video output the card will feature two mini DisplayPort and two mini HDMI outputs, while the card appears to be the same length as previous iterations.

In our previous tests the Asus and Club 3D HD 7990 cards showed mixed performance with the dual-GPUs working together to good effect in some games but not others. Whether this new card will have more consistent performance is yet to be seen but given the four month wait to work on driver improvements we would certainly expect to see at least some progress.

There is currently no word on how much the AMD Radeon HD 7990 will cost or exactly when it will arrive.

Does AMD's new card tickle your fancy? Let us know your thoughts in the comments.

11 Comments

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Mankz 27th March 2013, 09:27 Quote
AMD late to its own party?
runadumb 27th March 2013, 09:32 Quote
"Does AMD's new card tickle your fancy? Let us know your thoughts in the comments."

No. I've written off this gen and I'm counting down the days until the next one. Whenever the hell that is.
Realistically to continue gaming on 3 screens I need around double the performance I'm getting with my current 2x570GTX's. I just don't know if that's going to be possible or not :(
Jimbob 27th March 2013, 09:37 Quote
@Runadumb I totally agree, I'm using a HD6990 on 3 screens I had considered a pair of 7970's or a GTX690 but I need a bigger jump than is currently offered to make it worthwhile throwing down £800.

I hoped to be seeing the AMD 8K and NVidia 7xx series leaking better by now. Guess we still have quite a wait.
rollo 27th March 2013, 14:21 Quote
Have manufactures not already released a 7990 card? I was under the impression Asus among others have a duel gpu AMD card for the 7 series GPU range.
schmidtbag 27th March 2013, 14:40 Quote
For those with 3 screens, I wonder if the less-than-preferred performance is not so much the cores struggling but the lack of VRAM. IMO, 6GB on 3 displays of 1080p or higher while playing modern games seems like just barely good enough. There are HD7850s with 4GB. I think having 2 of those would prove to perform better on 3 displays than 1 HD6990 or even a 7990. OTOH, I think a single HD7990 would perform better on 1 or 2 screens than the 2x HD7850s.
runadumb 27th March 2013, 14:41 Quote
Quote:
Originally Posted by rollo
Have manufactures not already released a 7990 card? I was under the impression Asus among others have a duel gpu AMD card for the 7 series GPU range.

First line of the Article
"AMD has finally unveiled its version of the HD 7990 some four months after board partners first released cards based on the design. "
runadumb 27th March 2013, 14:43 Quote
Quote:
Originally Posted by schmidtbag
For those with 3 screens, I wonder if the less-than-preferred performance is not so much the cores struggling but the lack of VRAM. IMO, 6GB on 3 displays of 1080p or higher while playing modern games seems like just barely good enough. There are HD7850s with 4GB. I think having 2 of those would prove to perform better on 3 displays than 1 HD6990 or even a 7990. OTOH, I think a single HD7990 would perform better on 1 or 2 screens than the 2x HD7850s.

I'm pretty sure VRAM is a big issue for me. I only have 1.3GB per card. My next card(s) will be at least 3GB.
schmidtbag 27th March 2013, 14:50 Quote
Quote:
Originally Posted by runadumb
I'm pretty sure VRAM is a big issue for me. I only have 1.3GB per card. My next card(s) will be at least 3GB.

Hah yea, you will probably need more. But keep in mind Nvidia seems to handle memory a little better. I'd say in terms of gaming performance, 2GB of VRAM in an nvidia GPU is as good as 3GB in an AMD GPU. I'm sure plenty of people would disagree but it's just my personal opinion.

For the record, I like both companies equally; I like the work ethic and ambition of Nvidia but I don't like their attitude toward a lot of things. I currently use AMD right now but I have no problem in supporting nvidia.
Madness_3d 27th March 2013, 17:57 Quote
Less plugs is surely going to be more to do with keeping it within the 300W limit to make it PCI-E Compliant rather than anything else. Asus don't really care is their small run of boards don't comply, AMD thmeselves have to worry about these things.
CowBlazed 28th March 2013, 20:09 Quote
[QUOTE=schmidtbag]
Quote:
Originally Posted by runadumb
But keep in mind Nvidia seems to handle memory a little better. I'd say in terms of gaming performance, 2GB of VRAM in an nvidia GPU is as good as 3GB in an AMD GPU. I'm sure plenty of people would disagree but it's just my personal opinion.

For the record, I like both companies equally; I like the work ethic and ambition of Nvidia but I don't like their attitude toward a lot of things. I currently use AMD right now but I have no problem in supporting nvidia.

Think about it logically, is a texture made by the game developer going to take up more space on an AMD megabyte then on an nVidia megabyte?
schmidtbag 28th March 2013, 20:21 Quote
[QUOTE=CowBlazed;3316693]
Quote:
Originally Posted by schmidtbag


Think about it logically, is a texture made by the game developer going to take up more space on an AMD megabyte then on an nVidia megabyte?

I've thought of this myself but there's a lot more than textures that are loaded into VRAM. The architecture between the GPUs are drastically different, so AMD GPUs could end up loading more instructions into memory than an nvidia card, or nvidia might've just found a more efficient way to handle memory. For example, look at Vista compared to Windows 7 - it has less features but is more memory consuming. As another thought, nvidia drivers might end up using more system memory rather than it's own, though I would doubt that.

Also note that nvidia usually has notably higher memory bit rates than AMD cards. I have a 256MB 7900GT and it was comparable to ATI GPUs with 384MB, or some 512MB models due to it's surprisingly fast and high-bandwidth memory. It's still high even for today's standards.
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